0009937: Segmentation fault while opening incompatible FLAC file - MantisBT

ID	Project	Category	View Status	Date Submitted	Last Update

0009937	ardour	bugs	public	2025-05-27 10:31	2025-05-27 10:31

Reporter	bomno	Assigned To
Priority	low	Severity	major	Reproducibility	always
Status	new	Resolution	open
Platform	GNU	OS	Linux	OS Version	(any)
Product Version	8.12

Summary	0009937: Segmentation fault while opening incompatible FLAC file
Description	See the steps and additional info. Also reproducible on commit 7205739 from latest github master.
Steps To Reproduce	Truncate random FLAC file with `ffmpeg ... -ss 00:12:34 -t 00:01:02 -a:c copy ...` and try to either import it into your track (just pastes empty track) or preview it with "play" button in the "insert" window (crashes with the following message). I understand I malformed the file (should have used `-a:c flac` instead) but this is segmentation fault so definitely should not happen. Fixing the file works around the bug.
Additional Information	Thread 112 "butler" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffb4178980 (LWP 10566)] 0x00007ffff4fd50a7 in ?? () from /lib64/libc.so.6 (gdb) bt #0 0x00007ffff4fd50a7 in ??? () at /lib64/libc.so.6 0000001 0x00007ffff4ff8717 in ??? () at /lib64/libc.so.6 #2 0x00007ffff4fd24ce in snprintf () at /lib64/libc.so.6 #3 0x00007ffff4ed6293 in sf_error_str () at /usr/lib64/libsndfile.so.1 0000004 0x00007ffff7837d0d in ARDOUR::SndFileSource::read_unlocked(float, long, long) const () at /usr/lib64/ardour9/libardour.so.3 0000005 0x00007ffff738f2c3 in ARDOUR::AudioSource::read(float, long, long, int) const () at /usr/lib64/ardour9/libardour.so.3 #6 0x00007ffff78531a2 in ARDOUR::SrcFileSource::read_unlocked(float, long, long) const () at /usr/lib64/ardour9/libardour.so.3 ... 0002711 0x00007ffff7853323 in ARDOUR::SrcFileSource::read_unlocked(float, long, long) const () at /usr/lib64/ardour9/libardour.so.3 0002712 0x00007ffff738f2c3 in ARDOUR::AudioSource::read(float, long, long, int) const () at /usr/lib64/ardour9/libardour.so.3 0002713 0x00007ffff7379ef8 in ARDOUR::AudioRegion::read_from_sources(std::vector<std::shared_ptr<ARDOUR::Source>, std::allocator<std::shared_ptr<ARDOUR::Source> > > const&, long, float, long, long, unsigned int) const () at /usr/lib64/ardour9/libardour.so.3 0002714 0x00007ffff737b592 in ARDOUR::AudioRegion::read_at(float, float, float, long, long, unsigned int) const () at /usr/lib64/ardour9/libardour.so.3 0002715 0x00007ffff733caad in ARDOUR::AudioPlaylist::read(float, float, float, Temporal::timepos_t const&, Temporal::timecnt_t const&, unsigned int) () at /usr/lib64/ardour9/libardour.so.3 0002716 0x00007ffff73f30d2 in ARDOUR::DiskReader::audio_read(float, float, float, long&, long, ARDOUR::DiskReader::ReaderChannelInfo, int, bool) () at /usr/lib64/ardour9/libardour.so.3 0002717 0x00007ffff73f4502 in ARDOUR::DiskReader::refill_audio(float, float, float, long, bool) () at /usr/lib64/ardour9/libardour.so.3 0002718 0x00007ffff73f5178 in ARDOUR::DiskReader::do_refill_with_alloc(bool, bool) () at /usr/lib64/ardour9/libardour.so.3 0002719 0x00007ffff73f538c in ARDOUR::DiskReader::seek(long, bool) () at /usr/lib64/ardour9/libardour.so.3 0002720 0x00007ffff739ced0 in ARDOUR::Auditioner::audition_region(std::shared_ptr<ARDOUR::Region>, bool) () at /usr/lib64/ardour9/libardour.so.3 0002721 0x00007ffff7762766 in ARDOUR::Session::non_realtime_set_audition() () at /usr/lib64/ardour9/libardour.so.3 0002722 0x00007ffff7818817 in ARDOUR::Session::butler_transport_work(bool) () at /usr/lib64/ardour9/libardour.so.3 0002723 0x00007ffff73c9bfb in ARDOUR::Butler::thread_work() () at /usr/lib64/ardour9/libardour.so.3 0002724 0x00007ffff73ca65c in ARDOUR::Butler::_thread_work(void) () at /usr/lib64/ardour9/libardour.so.3 0002725 0x00007ffff69f4424 in ??? () at /usr/lib64/ardour9/libpbd.so.4 0002726 0x00007ffff50040b3 in ??? () at /lib64/libc.so.6 0002727 0x00007ffff508196c in ??? () at /lib64/libc.so.6
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Date Modified	Username	Field	Change
2025-05-27 10:31	bomno	New Issue